CLASS RACER FORUM - View Single Post - Data Recorder Shows 300 rpm 'droop' After Car Launches???

Don Whitmore · 06-13-2012, 12:26 PM

The data recorder is showing a significant rpm 'droop' (300 rpm - 400 rpm) after the car launches (converter flash)...sort of like a 'camel hump' in the run trace.

The car is a 350 ci SS/JA weighing about 3100 lb. The 60 ft times are good for this type car but wondering if they can be improved if the 'droop' is reduced???

I've noticed the Comp cars don't seem to have this issue, so is it something we're doing or just a characteristic of a Super Stock car???

What can be done to reduce or eliminate the 'droop?' Converter swap? Gearing? You just gotta live with it???

06-13-2012, 12:26 PM	#1
Don Whitmore Member Join Date: Aug 2004 Location: Central Illinois Posts: 140 Likes: 0 Liked 0 Times in 0 Posts	Data Recorder Shows 300 rpm 'droop' After Car Launches??? The data recorder is showing a significant rpm 'droop' (300 rpm - 400 rpm) after the car launches (converter flash)...sort of like a 'camel hump' in the run trace. The car is a 350 ci SS/JA weighing about 3100 lb. The 60 ft times are good for this type car but wondering if they can be improved if the 'droop' is reduced??? I've noticed the Comp cars don't seem to have this issue, so is it something we're doing or just a characteristic of a Super Stock car??? What can be done to reduce or eliminate the 'droop?' Converter swap? Gearing? You just gotta live with it???